Why did the file get bigger?

Because WebP simply compresses better than JPG — at matching quality it's typically 25–35% smaller. Converting to JPG trades compatibility for size, not the other way round. If a smaller file is what you're after, stay on WebP, or run the JPG through the compressor afterwards.

Where did my transparent background go?

It was filled with the colour you chose (white by default). The JPG format has no alpha channel — each pixel stores only RGB, with nowhere to keep transparency. If you need it preserved, don't convert to JPG.

Can it convert animated WebP?

It opens them, but you'll get the first frame only — JPG is a still format and can't hold more. To keep the animation, rebuild it with the GIF maker.

Are my images uploaded to a server?

No. Decoding, conversion and encoding all happen in your browser. You can verify it: open the network panel in developer tools and convert — no request carrying image data appears.

WebP to JPG: for compatibility, not for a smaller file

Drop it in and it's converted. You pick what fills the transparency — white by default.

or start a blank document

WebP is a newer format that browsers have supported for years, but plenty of software still doesn't take it: older image editors, office suites, print shop systems, and a fair number of upload forms. That's almost always the reason to convert.

Two things to know first. One: don't expect a smaller file — at the same quality WebP is usually smaller than JPG, so converting will most likely make it bigger. Two: JPG has no alpha channel, so transparent areas get filled with a colour (white by default); tools that don't ask tend to fill black.

Key features

Transparency fills white by default, not black

Proper linear blending by alpha, so semi-transparent edges stay smooth instead of gaining a hard fringe. White, black or light grey — the result updates as you pick.

Adjustable quality, size shown as you go

92% is the default: hard to tell from the original by eye. Drag it down to control the resulting size — the download button always shows it.

Animated WebP gives you the first frame only

JPG is a still format with nowhere to put extra frames. If your WebP is animated, you get frame one — that's the format's limit, not an error. To keep the animation, use the GIF maker.

Nothing uploaded, no limit on how many

Conversion finishes inside your browser; not one byte of the image goes out. Drop a dozen at once and it switches to batch mode.

How to use

1
Drop your WebP in

Drag, click to pick, or paste with Ctrl+V. Several at once turns into batch mode automatically.
2
Pick what fills the transparency

White by default. If your image has no transparency, this setting makes no difference.
3
Set quality, watch the size

Drag the slider; the result updates live. It will usually be larger than the WebP was — that's expected.
4
Download

Save as .jpg, or carry it into the pro editor in one click.

FAQ

Why did the file get bigger?: Because WebP simply compresses better than JPG — at matching quality it's typically 25–35% smaller. Converting to JPG trades compatibility for size, not the other way round. If a smaller file is what you're after, stay on WebP, or run the JPG through the compressor afterwards.
Where did my transparent background go?: It was filled with the colour you chose (white by default). The JPG format has no alpha channel — each pixel stores only RGB, with nowhere to keep transparency. If you need it preserved, don't convert to JPG.
Can it convert animated WebP?: It opens them, but you'll get the first frame only — JPG is a still format and can't hold more. To keep the animation, rebuild it with the GIF maker.
Are my images uploaded to a server?: No. Decoding, conversion and encoding all happen in your browser. You can verify it: open the network panel in developer tools and convert — no request carrying image data appears.

Try WebP to JPG: for compatibility, not for a smaller file now

Runs fully in your browser · no install · no signup · images never uploaded